<template>
<div >
  <nav-bar >
    <template v-slot:center>
      <div class="title">
        <div v-for="(item, index) in titles"
             class="title-item"
             :class="{active: index === currentIndex}"
             @click="titleClick(index)">
          {{item}}
        </div>
      </div>
    </template>
    <template v-slot:left>
      <div class="back" @click="backClick">
        <img src="~assets/images/common/back.svg" alt="">
      </div>
    </template>
  </nav-bar>
</div>
</template>

<script>
import NavBar from "components/common/navbar/NavBar";
export default {
  name: "DetailNavBar",
  components: {
    NavBar
  },
  props: {
  },
  data() {
    return {
      titles: ['商品', '参数', '评论', '推荐' ],
      currentIndex: 0
    }
  },
  methods: {
    titleClick(index){
      this.currentIndex = index
      this.$emit('titleClick',index)
    },
    backClick(){
      this.$router.go(-1)
    }
  }
}
</script>

<style scoped>
.title{
  display: flex;
  font-size: 13px;
}
.title-item{
  flex: 1;
}
.active{
  color: var(--color-tint);
}
.back img{
  margin-top: 12px

}
</style>
